No outdoor umbrella is complete without a base, and this Round Concrete-filled Resin Base is the perfect option. It holds the umbrella pole securely in place so that it does not move or tilt, providing a stable and impressive looking source of shade. Since it is filled with concrete, this base is quite heavy, which prevents it from shifting or being tipped over. However, since it isn’t permanently mounted into the ground, it allows the umbrella to conveniently be moved around to wherever shade is needed. Its small, unintrusive design does not take up too much space, and leaves plenty of room for beach chairs or other outdoor furniture to be placed under the umbrella. The Round Concrete-filled Resin Base is designed to fit the poles of both the Market Style Umbrella and Patio Style Umbrella, making it compatible for both of them.